Why so many problems with labeling? Isn't that done in arts since ever? Don't people write "oil on canvas" or "oil on wood" if it is oil on canvas, or oil on wood? "Indian Ink drawing" or "charcoal slack" or "pencil"?
I agree. If you ever enter a competition, or apply to a juried art festival, you'll need to describe your technique. It's not a relative value judgement. It just helps put the work's creation into context.